2. Round 28/08/1999 Real Valladolid - Athletic Bilbao 1:0
7. Round 11/10/1999 Málaga CF - Athletic Bilbao 3:4
8. Round 15/10/1999 Athletic Bilbao - Valencia CF 1:0
9. Round 22/10/1999 FC Barcelona - Athletic Bilbao 4:0 yellow card
10. Round 30/10/1999 Athletic Bilbao - Real Oviedo 1:1
11. Round 06/11/1999 Sevilla FC - Athletic Bilbao 0:0
12. Round 19/11/1999 Athletic Bilbao - Atlético Madrid 4:2
13. Round 27/11/1999 Rayo Vallecano - Athletic Bilbao 1:2 yellow card
14. Round 03/12/1999 Athletic Bilbao - Real Sociedad 1:1
15. Round 11/12/1999 RC Celta - Athletic Bilbao 1:1
16. Round 18/12/1999 Athletic Bilbao - Real Zaragoza 2:2
17. Round 21/12/1999 Racing Santander - Athletic Bilbao 2:2
18. Round 04/01/2000 Athletic Bilbao - Espanyol Barcelona 2:1 yellow card
19. Round 08/01/2000 CD Alavés - Athletic Bilbao 1:2
20. Round 15/01/2000 Real Betis - Athletic Bilbao 2:1 yellow card
21. Round 22/01/2000 Athletic Bilbao - Real Valladolid 1:0 yellow card
23. Round 05/02/2000 Athletic Bilbao - CD Numancia 2:1 yellow card
24. Round 11/02/2000 Athletic Bilbao - RCD Mallorca 1:1
25. Round 18/02/2000 Deportivo La Coruña - Athletic Bilbao 2:0 yellow-red card
27. Round 03/03/2000 Valencia CF - Athletic Bilbao 2:0
28. Round 10/03/2000 Athletic Bilbao - FC Barcelona 0:4
29. Round 18/03/2000 Real Oviedo - Athletic Bilbao 1:0
30. Round 24/03/2000 Athletic Bilbao - Sevilla FC 1:1 yellow card
31. Round 01/04/2000 Atlético Madrid - Athletic Bilbao 1:2 yellow card
32. Round 08/04/2000 Athletic Bilbao - Rayo Vallecano 1:2
33. Round 15/04/2000 Real Sociedad - Athletic Bilbao 4:1
34. Round 21/04/2000 Athletic Bilbao - RC Celta 1:0 yellow card